Home / 8,961.24-13,442.16-2,387.40

Finding the Fourth Proportional to 8,961.24, 13,442.16 and 2,387.40

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Solution

The fourth proportional to 8,961.24, 13,442.16 and 2,387.40 is: 3,581.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.24 : 13,442.16 = 2,387.40 : x
  2. Step 2: Convert to fraction form
    8,961.24/13,442.16 = 2,387.40/x
  3. Step 3: Cross multiply
    8,961.24x = 13,442.16 × 2,387.40
  4. Step 4: Simplify right side
    8,961.24x = 32,091,812.78
  5. Step 5: Solve for x
    x = 32,091,812.78/8,961.24
  6. Step 6: Final answer
    x = 3,581.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.